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    <title>网友留言</title>
    <style>
         *{
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        #bigBlock{
            width:50%;
            margin:0 auto;
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        ul{
            list-style: none;
            border-top:1px solid blue;
            border-bottom:1px solid blue;
            height:35px;
        }
        ul li{
            float:left;
            padding:0 80px;
        }
        ul li a{
            text-decoration: none;
            font-size:28px;
        }
    </style>
</head>
<body>
    <div id="bigBlock">
        <ul>
            <li>
            <a href="#">生活分享</a> 
            </li>
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